Ashy layer with clay lenses (locus 8) in upper half of T2E. Large rect stone (70 cm long, 17 cm wide) embedded in ground surrounded by concentration of ashes and covered with clay in parts. Large (~20 cm) sherds of black pottery on either side of stone. Cleaned surrounding area in upper half of trench to expose ashy layer but left stone area unexcavated. Tried to bring down locus 7 in rest of trench to same level as ashy layer. Finally closed locus 2 - E. corner of NE wall is clean. Still cleaning 2C - dragging a bit.